arr. 1. MOSQUITOES OF THE UNITED STATES—DYAR. 81 
The larva is unknown and the habits of the males have not been 
observed. The adults occur in wooded prairie, but are so much lke 
flavescens as to be indistinguishable without males. The species re- 
quires further study, although evidently distinct. 
Distribution—Canadian prairies, probably coéxtensive with 
fletcheri, but has not been differentiated. Probably extends into 
northern Minnesota, but collections are lacking that contain males. 
United States Records. 
None. ; 
AEDES (HETERONYCHA) GROSSBECKI Dyar and Knab. 
Aédes grossbecki Dyar and Knap, Journ. N. Y. Ent. Soce., vol. 14, p. 201, 1906. 
Culex sylvicola GRossBECK, Can. Ent., vol. 38, p. 129, 1906. 
A large brownish-gray mosquito with ringed legs. Mesonotum 
whitish on the sides, with a dark brown central band, which widens 
out squarely posteriorly by junction with the posterior side stripes; 
a little brown also anteriorly on lateral angles of mesonotum. Abdo- 
men black, with broad straight basal segmental white bands and 
scattered white scales, the last segment without basal band; some 
white scales apically on the terminal segments; venter whitish, with 
scattered black scales and traces of dark bands at the apices of the 
segments. Legs black with scattered white scales, the femora pale 
beneath; tarsi with white rings at the bases of the joints, broad on 
the hind legs. Wing scales broadly ovate, black and white rather 
evenly intermixed. 
The larvae occur in spring in woods pools, often associated with 
canadensis. The species is rare and local, apparently on the verge of 
extinction. 
Distribution Eastern United States, New Jersey to Mississippi. 
United States Records. 
New Jersey: New Brunswick, May 17 (J. A. Grossbeck). 
Livingston Park, May 5 (J. A. Grossbeck). 
Elizabeth, May 28, 1906 (D. S. Carmody). 
MARYLAND: Baltimore (T. H. Coffin). 
VircInIA: Grassymead, June 19, 1906 (I. Knab). 
Mississrppr: Natchez, April, 1903 (A. Fleming). 
Scott, April 24, 1915 (M. B. Mitzmain). 
AEDES (HETERONYCHA) SQUAMIGER Coguiilett. 
Culer squamiger CoqumtLett, Proc. U. S. Nat. Mus., vol. 25, p. 85, 1902. 
Grabhamia de niedmannii Lupitow, Can. Ent., vol. 36, p. 284, 1904. 
A rather large brownish-gray mosquito with ringed legs. Mesono- 
tum largely suffused with dull brown, leaving a little gray about the 
margin and in two narrow posterior lines, confused, generally with- 
out definite pattern. Abdomen black, with many scattered white 
60466—23—Proc.N.M.vol.62 6 
